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Article History

Received: 14 January 2019

Accepted: 19 March 2019

First Online: 4 April 2019

Compliance with Ethical Standards

:

: The authors declare that they have no conflict of interest.

: This study has been carried out with the approval of the Ethics Committees of School of Stomatology. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: Informed consent was obtained from all individual participants included in the study.